RESEARCH

Overview

My research centers on organic and polymer-based electronic materials and devices, with a particular emphasis on mechanical deformability, charge transport, and structure–property relationships. I am broadly interested in the design and characterization of functional thin films and device architectures for next-generation flexible and stretchable electronics.

This includes:

• Field-effect transistors with high charge mobility and intrinsic stretchability

• Electrochemical transistors utilizing solid-state electrolyte gating for neuromorphic applications

• Photodetectors with extended near-IR and SWIR sensitivity through molecular and interface engineering

By integrating multiscale structural analysis with device physics, my work aims to establish fundamental understanding and practical strategies for enhancing electrical performance, mechanical durability, and environmental stability in organic electronic systems.

Field-Effect Transistors

• Deformable and stretchable organic transistors with high charge mobility and mechanical robustness

• Bias-stress stability and charge trapping mechanisms in polymer semiconductors

• Organic transistor-based memory devices utilizing interface engineering and structural control

Electrochemical Transistors

• Solid-state electrolyte gate dielectrics

• Neuromorphic device behavior and ionic-electronic coupling in polymer-based OECTs

• Structure-function relationship in electrochemical gating and channel modulation

Photodetectors

• Short-wave infrared (SWIR) sensitivity using novel conjugated acceptors

• Pseudo-planar heterojunction for enhanced charge dissociation and dark current suppression

• Optimization of responsivity, detectivity, and spectral response through material and interface design

Research Interests

• Deformable/stretchable organic semiconductors

• Strain-dependent characteristics of organic semiconductor films

• Bias stress/operational stability of organic electronic devices

• Molecular doping of conjugated polymer films

• Human brain-inspired organic synaptic transistors

Technical Skills

• Proficient in fabricating and patterning thin films:
  spin coating, bar coating, dip coating, vapor deposition, photolithography, and reactive ion etching 

• Characterization techniques for nanomaterials:
  SEM, TEM, XPS, 2D-GIWAXS, SANS, AFM, Raman spectroscopy, UV-Vis spectroscopy, Ellipsometry, DMA, tensile testing.

• DFT simulation:
  Gaussian16W, GaussSum, NURION

• Electrical characteristic analysis 

• Python, Photoshop, Illustrator, 3ds Max